Title 26Internal Revenue CodeRelease 119-73not60

§4462 Definitions and Special Rules

Title 26 › Subtitle Subtitle D— Miscellaneous Excise Taxes › Chapter 36— CERTAIN OTHER EXCISE TAXES › Subchapter A— Harbor Maintenance Tax › § 4462

Last updated Apr 5, 2026|Official source

Summary

Sets rules for when a tax applies to loading or unloading commercial cargo at U.S. ports and says who is covered or free from the tax. It gives short definitions: "port use" means loading or unloading commercial cargo; "port" means a U.S. channel or harbor open to public navigation but not inland waterways, excluding places that have not gotten Federal money since 1977 or were deauthorized before 1985, and counting the Columbia River only up to the downstream side of Bonneville lock and dam. "Commercial cargo" means goods or paying passengers on a commercial vessel, but not bunker fuel, ship supplies, or fish not yet landed. "Commercial vessel" means a ship carrying cargo for hire or as the owner’s business, but not ferries that run daily on set schedules. "Value" means the usual commercial paperwork value or the fare paid for a passenger. The law lists many exceptions and rules. No tax is charged for cargo moved between the continental U.S. (not including Alaska) and Alaska, Hawaii, or U.S. possessions when for use there, with crude oil excluded for Alaska. If the vessel’s fuel was taxed under section 4042, then this tax does not apply. Exports, the U.S. government, and certain nonprofit or cooperative aid shipments certified by Customs are also exempt. Only one tax is charged for the same cargo when it is loaded and unloaded, movement inside a port is not taxed by itself, and relay cargo under one bill of lading is taxed once. Customs rules apply for collection and enforcement, and the Secretary can make regulations about payment, bonds, practical exemptions, and penalty relief.

Full Legal Text

Title 26, §4462

Internal Revenue Code — Source: USLM XML via OLRC

(a)For purposes of this subchapter—
(1)The term “port use” means—
(A)the loading of commercial cargo on, or
(B)the unloading of commercial cargo from,
(2)(A)The term “port” means any channel or harbor (or component thereof) in the United States, which—
(i)is not an inland waterway, and
(ii)is open to public navigation.
(B)The term “port” does not include any channel or harbor with respect to which no Federal funds have been used since 1977 for construction, maintenance, or operation, or which was deauthorized by Federal law before 1985.
(C)The term “port” shall include the channels of the Columbia River in the States of Oregon and Washington only up to the downstream side of Bonneville lock and dam.
(3)(A)The term “commercial cargo” means any cargo transported on a commercial vessel, including passengers transported for compensation or hire.
(B)The term “commercial cargo” does not include—
(i)bunker fuel, ship’s stores, sea stores, or the legitimate equipment necessary to the operation of a vessel, or
(ii)fish or other aquatic animal life caught and not previously landed on shore.
(4)(A)The term “commercial vessel” means any vessel used—
(i)in transporting cargo by water for compensation or hire, or
(ii)in transporting cargo by water in the business of the owner, lessee, or operator of the vessel.
(B)(i)The term “commercial vessel” does not include any ferry engaged primarily in the ferrying of passengers (including their vehicles) between points within the United States, or between the United States and contiguous countries.
(ii)The term “ferry” means any vessel which arrives in the United States on a regular schedule during its operating season at intervals of at least once each business day.
(5)(A)The term “value” means, except as provided in regulations, the value of any commercial cargo as determined by standard commercial documentation.
(B)In the case of the transportation of passengers for hire, the term “value” means the actual charge paid for such service or the prevailing charge for comparable service if no actual charge is paid.
(b)(1)No tax shall be imposed under section 4461(a) with respect to—
(A)cargo loaded on a vessel in a port in the United States mainland for transportation to Alaska, Hawaii, or any possession of the United States for ultimate use or consumption in Alaska, Hawaii, or any possession of the United States,
(B)cargo loaded on a vessel in Alaska, Hawaii, or any possession of the United States for transportation to the United States mainland, Alaska, Hawaii, or such a possession for ultimate use or consumption in the United States mainland, Alaska, Hawaii, or such a possession,
(C)the unloading of cargo described in subparagraph (A) or (B) in Alaska, Hawaii, or any possession of the United States, or in the United States mainland, respectively, or
(D)cargo loaded on a vessel in Alaska, Hawaii, or a possession of the United States and unloaded in the State or possession in which loaded, or passengers transported on United States flag vessels operating solely within the State waters of Alaska or Hawaii and adjacent international waters.
(2)For purposes of this subsection, the term “cargo” does not include crude oil with respect to Alaska.
(3)For purposes of this subsection, the term “United States mainland” means the continental United States (not including Alaska).
(c)No tax shall be imposed under this subchapter with respect to the loading or unloading of any cargo on or from a vessel if any fuel of such vessel has been (or will be) subject to the tax imposed by section 4042 (relating to tax on fuel used in commercial transportation on inland waterways).
(d)The tax imposed by section 4461(a) shall not apply to any port use with respect to any commercial cargo to be exported from the United States.
(e)No tax shall be imposed under this subchapter on the United States or any agency or instrumentality thereof.
(f)(1)Except to the extent otherwise provided in regulations, all administrative and enforcement provisions of customs laws and regulations shall apply in respect of the tax imposed by this subchapter (and in respect of persons liable therefor) as if such tax were a customs duty. For purposes of the preceding sentence, any penalty expressed in terms of a relationship to the amount of the duty shall be treated as not less than the amount which bears a similar relationship to the value of the cargo.
(2)For purposes of determining the jurisdiction of any court of the United States or any agency of the United States, the tax imposed by this subchapter shall be treated as if such tax were a customs duty.
(3)The tax imposed by this subchapter shall not be treated as a tax for purposes of subtitle F or any other provision of law relating to the administration and enforcement of internal revenue taxes.
(g)Except as provided by regulations—
(1)Only 1 tax shall be imposed under section 4461(a) with respect to the loading on and unloading from, or the unloading from and the loading on, the same vessel of the same cargo.
(2)Under regulations, no tax shall be imposed under section 4461(a) on the mere movement of cargo within a port.
(3)Only 1 tax shall be imposed under section 4461(a) on cargo (moving under a single bill of lading) which is unloaded from one vessel and loaded onto another vessel at any port in the United States for relay to or from any port in Alaska, Hawaii, or any possession of the United States. For purposes of this paragraph, the term “cargo” does not include any item not treated as cargo under subsection (b)(2).
(h)No tax shall be imposed under this subchapter on any nonprofit organization or cooperative for cargo which is owned or financed by such nonprofit organization or cooperative and which is certified by the United States Customs Service as intended for use in humanitarian or development assistance overseas.
(i)The Secretary may prescribe such additional regulations as may be necessary to carry out the purposes of this subchapter including, but not limited to, regulations—
(1)providing for the manner and method of payment and collection of the tax imposed by this subchapter,
(2)providing for the posting of bonds to secure payment of such tax,
(3)exempting any transaction or class of transactions from such tax where the collection of such tax is not administratively practical, and
(4)providing for the remittance or mitigation of penalties and the settlement or compromise of claims.

Legislative History

Notes & Related Subsidiaries

Editorial Notes

Prior Provisions

For prior section 4462, see

Prior Provisions

note set out preceding section 4471 of this title.

Amendments

2005—Subsec. (d). Pub. L. 109–59 amended heading and text of subsec. (d) generally, substituting provisions relating to nonapplicability of tax imposed by section 4461(a) to exports for provisions relating to nonapplicability of tax imposed by section 4461(a) to bonded commercial cargo entering the United States for transportation and direct exportation to a foreign country and inapplicability of this provision to certain cargo exported to Canada or Mexico. 1996—Subsec. (b)(1)(D). Pub. L. 104–188 inserted before period at end “, or passengers transported on United States flag vessels operating solely within the State waters of Alaska or Hawaii and adjacent international waters”. 1988—Subsec. (b)(1)(B). Pub. L. 100–647, § 2002(b), amended subpar. (B) generally. Prior to amendment, subpar. (B) read as follows: “cargo loaded on a vessel in Alaska, Hawaii, or any possession of the United States for transportation to the United States mainland for ultimate use or consumption in the United States mainland,”. Subsec. (g)(3). Pub. L. 100–647, § 6110(a), added par. (3). Subsecs. (h), (i). Pub. L. 100–647, § 6109(a), added subsec. (h) and redesignated former subsec. (h) as (i).

Statutory Notes and Related Subsidiaries

Effective Date

of 2005 AmendmentAmendment by Pub. L. 109–59 effective before, on, and after Aug. 10, 2005, see section 11116(c) of Pub. L. 109–59, set out as a note under section 4461 of this title.

Effective Date

of 1996 Amendment Pub. L. 104–188, title I, § 1704(i)(2), Aug. 20, 1996, 110 Stat. 1881, provided that: “The amendment made by paragraph (1) [amending this section] shall take effect as if included in the

Amendments

made by section 1402(a) of the Harbor Maintenance Revenue Act of 1986 [Pub. L. 99–662, title XIV].”

Effective Date

of 1988 AmendmentAmendment by section 2002(b) of Pub. L. 100–647 effective as if included in the provision of the Harbor Maintenance Revenue Act of 1986, Pub. L. 99–662, title XIV, to which it relates, see section 2002(d) of Pub. L. 100–647, set out as a note under section 4042 of this title. Pub. L. 100–647, title VI, § 6109(b), Nov. 10, 1988, 102 Stat. 3712, provided that: “The amendment made by subsection (a) [amending this section] shall take effect on April 1, 1987.” Pub. L. 100–647, title VI, § 6110(b), Nov. 10, 1988, 102 Stat. 3713, provided that: “The amendment made by this section [amending this section] shall take effect on the date of the enactment of this Act [Nov. 10, 1988].”

Effective Date

Section effective Apr. 1, 1987, see section 1402(c) of Pub. L. 99–662, set out as a note under section 4461 of this title.

Transfer of Functions

For

Transfer of Functions

, personnel, assets, and liabilities of the United States Customs Service of the Department of the Treasury, including functions of the Secretary of the Treasury relating thereto, to the Secretary of Homeland Security, and for treatment of related references, see section 203(1), 551(d), 552(d), and 557 of Title 6, Domestic Security, and the Department of Homeland Security Reorganization Plan of November 25, 2002, as modified, set out as a note under section 542 of Title 6. For establishment of U.S. Customs and Border Protection in the Department of Homeland Security, treated as if included in Pub. L. 107–296 as of Nov. 25, 2002, see section 211 of Title 6, as amended generally by Pub. L. 114–125, and section 802(b) of Pub. L. 114–125, set out as a note under section 211 of Title 6.

Reference

Citations & Metadata

Citation

26 U.S.C. § 4462

Title 26Internal Revenue Code

Last Updated

Apr 5, 2026

Release point: 119-73not60